numbers and ion
6.022 x 1o23 is called this
Avogadros number
Calcium has a charge of +2, chlorine has a charge of -1. This is the correct molecular formula for calcium chloride
What is CaCl2
A bond when electrons are shared
What is covalent bonding?
A reaction that gives off energy
Exothermic
These are the products of photosynthesis
What are oxygen and glucose (sugar)
a negatively charged ion
What is an anion?
C2H4 + O2 ---> CO2 + H2O
balance the equation
C2H4 + 3O2 ---> 2CO2 + 2H2O
When two elements share their electrons equally and there is no tugging between them
non polar covalent bonding
A reaction that absorbs energy
Endothermic
These are the products of cellular respiration
What are carbon dioxide and water
Carbon has a molar mass of 12. 6 grams of carbon has this many moles
What is 0.5 moles?
Matter is neither created nor destroyed
What is the law of conservation of matter
these 3 elements bond with hydrogen to make hydrogen bonds
What are flourine, oxygen, and nitrogen?
The energy needed to get a reaction to start
What is activation energy?
Gas exchange occurs in this part of a leaf
What are the stomata?
If carbon has a molar mass of 12, 10 moles of carbon has this many grams
What is 120 grams?
Given AlCl3. The charge on aluminum is this
What is +3?
Of oxygen, nitrogen, sodium, and sulfur- this is the least electronegative
What is sodium?
A positive change in enthalpy indicates this type of reaction
What is endothermic?
Photosynthesis occurs in this part of the leaf of a plant
What is the chloroplast?
These have complete shells of electrons and are not looking to either gain or lose electrons
What are the noble gases?
Balance
CO2 + H2O ---> C6H12O6 + O2
What is 6H2O + 6CO2 ---> C6H12O6 + 6O2
Non polar forces between molecules that are very weak
What are London dispersion forces?
Fire and mixing hydrochloric acid with sodium hydroxide are examples of this kind of reaction
What is exothermic?
Cellular respiration occurs in this part of a cell and produces ATP energy
What are the mitochondria?